Lifting jack



'July 3, 1923. 1`,46o,851

J. KAUPERT LIFTING JACK Filed Sent. 24. 1921 2 Sheets-Sheet v2 Patented`luly 3,1923.

u UNITED; STATES PArENrorFic 1:.

JOSEPH Kao-PERT, or CHICAGO, ILLINoIs.'

Lrrrrne JACK.'

l i Application filed September 24,1921. -Seria1No. 502,934i` f f ToalZZ wL-omz'tmay concern.-

` ofthis character especiallyadapted for lifting the axles ofautomobiles andthe like. n

A lfurther'object ofthe invention is the provision of a simple and`efficient device of this character Yby means o-f which a coinparativelylarge elevating movement maybe "une 7 7 of rig.4v 5; The preferredconveniently effected.

v' Other objects willappear hereinafter.' p

4The invention consists in the combinations and arrangements of partshereinafter described andclaimed. The invention will be best understoodby reference to the `accompanying 'drawings forming a part of'thisspeciiicatiom' and in which,l Fig. 1is a side view shown partly'in section, illustrating a device embodying the 1nvention and shown inposition offuser Fig. 2, an enlarged partial'side view Aof the devi'ceg.e' l Fig. 3, a section taken,substantiallyon line 43 3 of `Fig..2;' 'Y KY e Fig. 4, a 'section' taken substantially on line 4-4 of Fig.2; i,Fig. 5, a partial top plan view of the device; c.

Fig. 6, a d etail'vie'w illustrating a folding joint employed inthelift-ing `lever-ofthe device and `Fig..7, a section taken vsubstantiallyon form' of construction; as illustrated in the drawings comprises asuitable base 8 having anvupstan'ding hollow post 9 adjacent one endthereof. "Aflifting bar lO-is arranged'toslide vertically in the hollowpost-9 and is provided atits upper end with a rest 11 adapted to restunderthe object to. be lifted. Thegbarv 10 isl provided witha'longitudinal slot 12 engaged by a bolt y13 extending transverselythrough the post 9 (and whereby vertical movements lofthe `lifting barare permitted, but complete accidental removal of. the' bar prevented.\rThebar 1,0 is also provided with a laterally vextending pln 14, and aswingingicatchxli-is provided onl the post 9 to ,enga/ge said pinto locksaid liftingbar kin its depressedpos'ition soas to facilitatetransportation, 1.- f The lifting bar 10:.fisprovided on one side with aplurality .of ratchet'lt'eeth 16 -cooperatingiwithalock rodl'voperatingfreely-.in inclined slots 18 formed `in the sides of postj9 onopposite `sides of the teeth 16y and whereby said lockingrod willautomaticallyv engage with the `teeth16 to lock saidlifting bar-in itsvarious lpositions of'vertical vadjustment. AThe'bar-17fisprovided withan operating linger 19connected with a string or'cable 20'by m'eans'ofwhich said locking rod may be" withdrawn vfrom 'engagement with saidteeth to permit of depressionof the lfiftingbar 10. A hollow fulcrumpost 21 is pivoted at 22 between two `lugs ory ears 23 on the base 8 topermit of limited free lateral swinging `of said p-ost. At its bottomthe vpost 21 is-proy i vided with a central notch 24-engaginfg a'if-shaped abutment 25 on the base. 8 and whereby the pivot 22 will bereinforced and rendered capable of standing heavyistrains. l

A fulcrum 'bar' 26 vis mounted for free vertical sliding inthe post'21and is'proJ- videdkwith a longitudinal slot 27 engaged byatransversebolt 28, as indicated, to per.y

mit' free vertical movements but. prevent-Y actual displacement; Anotch`29 is provided in the bottom of bar 26 to accommodate the pivotpin 22. The bar 26y 'is also provided 4 witha laterally extending Vpin'30,nand.'the

post 21 with a co-op'erating ylatch-'31 to lock f' saidbar againstremoval 'fromcsaid post when desired. y1 v A lockmg rod-'.32 is mountedin'inclined .slots 33 to co-operate with teeth`34 inthey rwhen desired.

` A'lever 35 istpivotally connectedy at36 y with thev uitingen mandaterwiththe upper end of the fulcrum bar 26. The lever 35 is provided'withla foldableeXtension 38 l pivoted thereto atp39 and provided with' alateral extension 40 engaging under said lever, as` indicated, 'whereby`said lever` may be folded'when desired.-

In use the rest lll-is placed under the ob.- ject to be lifted, and thelever 35-38 manipulated to elevate said object, the fulcrumpost 2l andbar 26 swinging. laterally to. permitA of free manipulation of saidlever. If the lift thus obtained is not sufficient, the lever 26 israised to elevate the fulcrum bar 26 in its post 2l, whereupon thellever may be,l

utilized to again raise the lifting bar l0.' In this manner the objecttobe lifted may be raised step. .bystep to. any desiredv lheight Withinthe capacity thereof. When it is desired to lo-vver the lifted object,the ful- Crum post is first lovveredby releasing the locking` nod32, andthen the lever 35 is held to y.temporarily support the object, and thelifting bar 10 lowered by releasing the locking rod l?. In this Way thelifted object i ay be'. lowered stepfby step, and thnsre# turned tooriginal position..l

lVliile li have illustrated and describedv the preferred forni ofconstruction for carrying. my invention intoeffecnthis is capable ofvariation and modification Without departing from the spirit of theinvention.r I, therefore7 do. not Wish to. be limited to the precisedetails of the constructionl set forth, but.l desire to avai'l myselfvof such variations and modifications. as come Within` the. scope of-the appended claims.

Having described my invention, what l claim as new and. desire to.secure by Letters Patent, is

1;. A device of the class described; corn-k prising arverticalllymovable lifting member; meansffor automatically" locking said; liftingmember in various positions of vertical adjustment; vertically movablefulcrum member; means. for automatically locking member-gi ymeans forautomatically locking said: fulcr'u-m: member invarious positions ofVertical adjustment; manuallyoperable means fori-ndependently releasingsaid automatic locking means; and a lever operatively connected, Wit/liboth. ofsaid members, substantially as described..`

3. A device of the class described comprising.- a vertically; movableliftingl inembfer; afyertioallymovable laterally swinging. fnl'crummember; and a, lever operativel'y connected with bothi of said members,substantially as described.Y y

mt. Ai device-of' the classddescribed comrising a vertically movablelifting memlier; means for automatically l-oclingfsaid lifting member invarious positions of vertical adjustment; a vertical movable laterallyswinging fulcrum member; ymeans for automatically locking said fulcrummember in Various. positions of vertical adjustment; and a' leveroperatively connected With both of said members, substantially asdescribed.

5. A device of the class described comprising a vertically movablelifting member; means' fo-r automatically locking. said lifting memberin` various positions of ver-I tical adjustment; vertically movable.laterally swinging fulcrum member; means. for automatically locking:lsaid fnlcrum member yin, various;l positions. of verticalad-y justment;manually Operable. 01' n dependentlyreleasing saidlockingy means; and alevery operativelyc'onnected with both of said members, substantially asdescribed; i 6'. A device of the class described com.- prisinga base;anAripetaridingl hollow post on said base; a lifting bar verticallyslid# able in said. postea. plurality voafratcl'iet teeth arrangedValong one side.. of said lifts ing bar; inclined slotslin the sidesy ofsaid: post adjacent said teeth;A a locking rodarranged in said slotsand. adapted to auto.- matica-lly engage said` teeth; manually operableymeans forl withdrawing sai-d locking rod from saidteeth ;-a leverpivotally con.- nected With said liftingA rod1;a fulcruin bar pivotallyconnected vvithsaid lever andA depending there-from;a hollow fulcrumpost, receiving said bar' for free. vertical` a,cl.''jii; stel kmenttherein, said fulcrum post beingpiyotally mounted; on said basegasubstantially 100 \/--shaped. abutment on,v said. base?.V contactingwith j thebottom of said; flul'crum. post adj a1- cent. saidpivot.;ratchet teeth on'one side o-f said fulcrum bar; inclinedl notches insaid; fulcru-m. post adjacent, said teeth;i a 105 I locking rod freelyslidable said notches and adapted to-v engage said: teeth ;vandlmanually operable means for releasingsafidlast mentioned; llockingrod, ,substantially aszdescribed. 110

.7. A device of rthe classdescribed. comprising a. base; an:upstan-d'ing, hollow: post on said base; a lifting bar vertically ablein said post.; a. plurality of? ratchet .j teeth arranged along oneside.. o'fwsa-id lifting 115 bar; inclined slots, in.. the lsides off.saidv post adjacent saidteeth a locking rodi arranged in saidslots and,adapted. to automatically engage saiditeethc; manually opcrablevmeansfor withdrawing; sai'dflockingrodfi'om said 12C teeth.; a lever.pino-tallyconneetedvvitl said lifting rod.; affulcrnm. bar pivotallyconi nected Wit-h; saidleven andv dependent-'therefrgom; a hollow.`fulcrum ypost;neceivinfg,` said bar l for' free vertical'.adji'i'stnient'r therein, 125 saidfnlcrum postbeing.: pivotajlly mountedon.l said. base.; a. substantially" Vshap'ed abutment on said. base,co'ntalctingg'*` vvitlil tlije bottom of.; said fulcrum post adjacentSaid 1,460,851. I y yg?,

crum bar; inclined notches in said ulcrum In testimony whereof I have`sifgfned post adjacent said teeth; a locking rod freename to thisspeciflcatonin the 1;)1esence.v of

ly sldable in said notches and adapted to two subscribing Witnesses. fengage said teeth; manually operable means JOSEPHv KAUPERT. ,s forreleasing said last mentioned locking Witnesses: c

iod; and a oldable extension handle for JOSHUA R. H1 PoTTs, said lever,substantially as described. F 1mm C. APPLETQN.

